Legal claims defining the scope of protection, as filed with the USPTO.
3. The system of claim 2, further comprising a registration client configured to register the set of keys and the user-registered PIN for the user by at least presenting a virtual keypad or keyboard with randomly-arranged keys via which the user can enter the PIN elements of the user-registered PIN.
4. The system of claim 1, wherein the information indicative of the hash value comprises a randomly-selected hash table index.
7. The system of claim 1, wherein the login client is further configured to present a virtual keypad or keyboard with randomly-arranged keys via which the user can enter the subset of PIN elements.
11. The system of claim 10, wherein the authentication server is further configured to limit the number of additional login attempts based on the risk score.
14. The method of claim 12, wherein the information indicative of the hash value comprises a randomly-selected hash table index.
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September 10, 2024
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